The centre of a circle is (2a−1,a). Find the value of a, if the circle passes through the point (10,−2) and has diameter 10√2 units.

Quadrilateral efgh was dilated with the origin as the center of dilation to create quadrilateral e'f'g'h'. the quadrilateral was dilated using a scale factor of 2.5. the lengths of the sides of quadrilateral efgh are given. what is the length of side f'g'?

Given: x - 4x > 0, then the solution set in interval notation is: (-2, 0) true o false

What states a rule using variables expression term or formula